Datrys 1/2mv^2=1/2*(21*10^3)(29*10^3)^2

$$\frac { 1 } { 2 } m v ^ { 2 } = \frac { 1 } { 2 } \cdot ( 21 \times 10 ^ { 3 } ) ( 29 \times 10 ^ { 3 } ) ^ { 2 }$$

Datrys ar gyfer m

$$m=\frac{17661000000000}{v^{2}}$$

$$v\neq 0$$

Camau ar gyfer Datrys Hafaliad Llinol

Rhaid i chi ganslo \frac{1}{2} allan ar y ddwy ochr.

$$mv^{2}=21\times 10^{3}\times \left(29\times 10^{3}\right)^{2}$$

Cyfrifo 10 i bŵer 3 a chael 1000.

$$mv^{2}=21\times 1000\times \left(29\times 10^{3}\right)^{2}$$

Lluosi 21 a 1000 i gael 21000.

$$mv^{2}=21000\times \left(29\times 10^{3}\right)^{2}$$

Cyfrifo 10 i bŵer 3 a chael 1000.

$$mv^{2}=21000\times \left(29\times 1000\right)^{2}$$

Lluosi 29 a 1000 i gael 29000.

$$mv^{2}=21000\times 29000^{2}$$

Cyfrifo 29000 i bŵer 2 a chael 841000000.

$$mv^{2}=21000\times 841000000$$

Lluosi 21000 a 841000000 i gael 17661000000000.

$$mv^{2}=17661000000000$$

Mae'r hafaliad yn y ffurf safonol.

$$v^{2}m=17661000000000$$

Rhannu’r ddwy ochr â v^{2}.

$$\frac{v^{2}m}{v^{2}}=\frac{17661000000000}{v^{2}}$$

Mae rhannu â v^{2} yn dad-wneud lluosi â v^{2}.

$$m=\frac{17661000000000}{v^{2}}$$

Datrys ar gyfer v (complex solution)

$$v=-290000\sqrt{210}m^{-\frac{1}{2}}$$

$$v=290000\sqrt{210}m^{-\frac{1}{2}}\text{, }m\neq 0$$

Datrys ar gyfer v

$$v=290000\sqrt{\frac{210}{m}}$$

$$v=-290000\sqrt{\frac{210}{m}}\text{, }m>0$$